// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005 Jon Tirsen (http://www.tirsen.com)
//           (c) 2005 Michael Schuerig (http://www.schuerig.de/michael/)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


// experimental, Firefox-only
Event.simulateMouse = function (element, eventName) {
    var options = Object.extend({
        pointerX: 0,
        pointerY: 0,
        buttons: 0
    }, arguments[2] || {});
    var oEvent = document.createEvent("MouseEvents");
    oEvent.initMouseEvent(eventName, true, true, document.defaultView,
        options.buttons, options.pointerX, options.pointerY, options.pointerX, options.pointerY,
        false, false, false, false, 0, $prototype(element));

    if (this.mark) Element.remove(this.mark);
    this.mark = document.createElement('div');
    this.mark.appendChild(document.createTextNode(" "));
    document.body.appendChild(this.mark);
    this.mark.style.position = 'absolute';
    this.mark.style.top = options.pointerY + "px";
    this.mark.style.left = options.pointerX + "px";
    this.mark.style.width = "5px";
    this.mark.style.height = "5px;";
    this.mark.style.borderTop = "1px solid red;"
    this.mark.style.borderLeft = "1px solid red;"

    if (this.step)
        alert('[' + new Date().getTime().toString() + '] ' + eventName + '/' + Test.Unit.inspect(options));

    $prototype(element).dispatchEvent(oEvent);
};

// Note: Due to a fix in Firefox 1.0.5/6 that probably fixed "too much", this doesn't work in 1.0.6 or DP2.
// You need to downgrade to 1.0.4 for now to get this working
// See https://bugzilla.mozilla.org/show_bug.cgi?id=289940 for the fix that fixed too much
Event.simulateKey = function (element, eventName) {
    var options = Object.extend({
        ctrlKey: false,
        altKey: false,
        shiftKey: false,
        metaKey: false,
        keyCode: 0,
        charCode: 0
    }, arguments[2] || {});

    var oEvent = document.createEvent("KeyEvents");
    oEvent.initKeyEvent(eventName, true, true, window,
        options.ctrlKey, options.altKey, options.shiftKey, options.metaKey,
        options.keyCode, options.charCode);
    $prototype(element).dispatchEvent(oEvent);
};

Event.simulateKeys = function (element, command) {
    for (var i = 0; i < command.length; i++) {
        Event.simulateKey(element, 'keypress', {charCode: command.charCodeAt(i)});
    }
};

var Test = {}
Test.Unit = {};

// security exception workaround
Test.Unit.inspect = Object.inspect;

Test.Unit.Logger = Class.create();
Test.Unit.Logger.prototype = {
    initialize: function (log) {
        this.log = $prototype(log);
        if (this.log) {
            this._createLogTable();
        }
    },
    start: function (testName) {
        if (!this.log) return;
        this.testName = testName;
        this.lastLogLine = document.createElement('tr');
        this.statusCell = document.createElement('td');
        this.nameCell = document.createElement('td');
        this.nameCell.appendChild(document.createTextNode(testName));
        this.messageCell = document.createElement('td');
        this.lastLogLine.appendChild(this.statusCell);
        this.lastLogLine.appendChild(this.nameCell);
        this.lastLogLine.appendChild(this.messageCell);
        this.loglines.appendChild(this.lastLogLine);
    },
    finish: function (status, summary) {
        if (!this.log) return;
        this.lastLogLine.className = status;
        this.statusCell.innerHTML = status;
        this.messageCell.innerHTML = this._toHTML(summary);
    },
    message: function (message) {
        if (!this.log) return;
        this.messageCell.innerHTML = this._toHTML(message);
    },
    summary: function (summary) {
        if (!this.log) return;
        this.logsummary.innerHTML = this._toHTML(summary);
    },
    _createLogTable: function () {
        this.log.innerHTML =
            '<div id="logsummary"></div>' +
            '<table id="logtable">' +
            '<thead><tr><th>Status</th><th>Test</th><th>Message</th></tr></thead>' +
            '<tbody id="loglines"></tbody>' +
            '</table>';
        this.logsummary = $prototype('logsummary')
        this.loglines = $prototype('loglines');
    },
    _toHTML: function (txt) {
        return txt.escapeHTML().replace(/\n/g, "<br/>");
    }
}

Test.Unit.Runner = Class.create();
Test.Unit.Runner.prototype = {
    initialize: function (testcases) {
        this.options = Object.extend({
            testLog: 'testlog'
        }, arguments[1] || {});
        this.options.resultsURL = this.parseResultsURLQueryParameter();
        if (this.options.testLog) {
            this.options.testLog = $prototype(this.options.testLog) || null;
        }
        if (this.options.tests) {
            this.tests = [];
            for (var i = 0; i < this.options.tests.length; i++) {
                if (/^test/.test(this.options.tests[i])) {
                    this.tests.push(new Test.Unit.Testcase(this.options.tests[i], testcases[this.options.tests[i]], testcases["setup"], testcases["teardown"]));
                }
            }
        } else {
            if (this.options.test) {
                this.tests = [new Test.Unit.Testcase(this.options.test, testcases[this.options.test], testcases["setup"], testcases["teardown"])];
            } else {
                this.tests = [];
                for (var testcase in testcases) {
                    if (/^test/.test(testcase)) {
                        this.tests.push(new Test.Unit.Testcase(testcase, testcases[testcase], testcases["setup"], testcases["teardown"]));
                    }
                }
            }
        }
        this.currentTest = 0;
        this.logger = new Test.Unit.Logger(this.options.testLog);
        setTimeout(this.runTests.bind(this), 1000);
    },
    parseResultsURLQueryParameter: function () {
        return window.location.search.parseQuery()["resultsURL"];
    },
    // Returns:
    //  "ERROR" if there was an error,
    //  "FAILURE" if there was a failure, or
    //  "SUCCESS" if there was neither
    getResult: function () {
        var hasFailure = false;
        for (var i = 0; i < this.tests.length; i++) {
            if (this.tests[i].errors > 0) {
                return "ERROR";
            }
            if (this.tests[i].failures > 0) {
                hasFailure = true;
            }
        }
        if (hasFailure) {
            return "FAILURE";
        } else {
            return "SUCCESS";
        }
    },
    postResults: function () {
        if (this.options.resultsURL) {
            new Ajax.Request(this.options.resultsURL,
                {method: 'get', parameters: 'result=' + this.getResult(), asynchronous: false});
        }
    },
    runTests: function () {
        var test = this.tests[this.currentTest];
        if (!test) {
            // finished!
            this.postResults();
            this.logger.summary(this.summary());
            return;
        }
        if (!test.isWaiting) {
            this.logger.start(test.name);
        }
        test.run();
        if (test.isWaiting) {
            this.logger.message("Waiting for " + test.timeToWait + "ms");
            setTimeout(this.runTests.bind(this), test.timeToWait || 1000);
        } else {
            this.logger.finish(test.status(), test.summary());
            this.currentTest++;
            // tail recursive, hopefully the browser will skip the stackframe
            this.runTests();
        }
    },
    summary: function () {
        var assertions = 0;
        var failures = 0;
        var errors = 0;
        var messages = [];
        for (var i = 0; i < this.tests.length; i++) {
            assertions += this.tests[i].assertions;
            failures += this.tests[i].failures;
            errors += this.tests[i].errors;
        }
        return (
            this.tests.length + " tests, " +
            assertions + " assertions, " +
            failures + " failures, " +
            errors + " errors");
    }
}

Test.Unit.Assertions = Class.create();
Test.Unit.Assertions.prototype = {
    initialize: function () {
        this.assertions = 0;
        this.failures = 0;
        this.errors = 0;
        this.assertionsAndFailures = 0;
        this.messages = [];
    },
    summary: function () {
        return (
            this.assertions + " assertions, " +
            this.failures + " failures, " +
            this.errors + " errors" + "\n" +
            this.messages.join("\n"));
    },
    pass: function () {
        this.assertionsAndFailures++;
        this.assertions++;
    },
    fail: function (message) {
        this.failures++;
        this.assertionsAndFailures++;
        this.messages.push("Location: " + this.assertionsAndFailures + " Failure: " + message);
    },
    info: function (message) {
        this.messages.push("Info: " + message);
    },
    error: function (error) {
        this.errors++;
        this.messages.push(error.name + ": " + error.message + "(" + Test.Unit.inspect(error) + ")");
    },
    status: function () {
        if (this.failures > 0) return 'failed';
        if (this.errors > 0) return 'error';
        return 'passed';
    },
    assert: function (expression) {
        var message = arguments[1] || 'assert: got "' + Test.Unit.inspect(expression) + '"';
        try {
            expression ? this.pass() :
                this.fail(message);
        }
        catch (e) {
            this.error(e);
        }
    },
    assertEqual: function (expected, actual) {
        var message = arguments[2] || "assertEqual";
        try {
            (expected == actual) ? this.pass() :
                this.fail(message + ': expected "' + Test.Unit.inspect(expected) +
                    '", actual "' + Test.Unit.inspect(actual) + '"');
        }
        catch (e) {
            this.error(e);
        }
    },
    assertEnumEqual: function (expected, actual) {
        var message = arguments[2] || "assertEnumEqual";
        try {
            $A(expected).length == $A(actual).length &&
            expected.zip(actual).all(function (pair) {
                return pair[0] == pair[1]
            }) ?
                this.pass() : this.fail(message + ': expected ' + Test.Unit.inspect(expected) +
                ', actual ' + Test.Unit.inspect(actual));
        }
        catch (e) {
            this.error(e);
        }
    },
    assertNotEqual: function (expected, actual) {
        var message = arguments[2] || "assertNotEqual";
        try {
            (expected != actual) ? this.pass() :
                this.fail(message + ': got "' + Test.Unit.inspect(actual) + '"');
        }
        catch (e) {
            this.error(e);
        }
    },
    assertNull: function (obj) {
        var message = arguments[1] || 'assertNull'
        try {
            (obj == null) ? this.pass() :
                this.fail(message + ': got "' + Test.Unit.inspect(obj) + '"');
        }
        catch (e) {
            this.error(e);
        }
    },
    assertHidden: function (element) {
        var message = arguments[1] || 'assertHidden';
        this.assertEqual("none", element.style.display, message);
    },
    assertNotNull: function (object) {
        var message = arguments[1] || 'assertNotNull';
        this.assert(object != null, message);
    },
    assertInstanceOf: function (expected, actual) {
        var message = arguments[2] || 'assertInstanceOf';
        try {
            (actual instanceof expected) ? this.pass() :
                this.fail(message + ": object was not an instance of the expected type");
        }
        catch (e) {
            this.error(e);
        }
    },
    assertNotInstanceOf: function (expected, actual) {
        var message = arguments[2] || 'assertNotInstanceOf';
        try {
            !(actual instanceof expected) ? this.pass() :
                this.fail(message + ": object was an instance of the not expected type");
        }
        catch (e) {
            this.error(e);
        }
    },
    _isVisible: function (element) {
        element = $prototype(element);
        if (!element.parentNode) return true;
        this.assertNotNull(element);
        if (element.style && Element.getStyle(element, 'display') == 'none')
            return false;

        return this._isVisible(element.parentNode);
    },
    assertNotVisible: function (element) {
        this.assert(!this._isVisible(element), Test.Unit.inspect(element) + " was not hidden and didn't have a hidden parent either. " + ("" || arguments[1]));
    },
    assertVisible: function (element) {
        this.assert(this._isVisible(element), Test.Unit.inspect(element) + " was not visible. " + ("" || arguments[1]));
    },
    benchmark: function (operation, iterations) {
        var startAt = new Date();
        (iterations || 1).times(operation);
        var timeTaken = ((new Date()) - startAt);
        this.info((arguments[2] || 'Operation') + ' finished ' +
            iterations + ' iterations in ' + (timeTaken / 1000) + 's');
        return timeTaken;
    }
}

Test.Unit.Testcase = Class.create();
Object.extend(Object.extend(Test.Unit.Testcase.prototype, Test.Unit.Assertions.prototype), {
    initialize: function (name, test, setup, teardown) {
        Test.Unit.Assertions.prototype.initialize.bind(this)();
        this.name = name;
        this.test = test || function () {
        };
        this.setup = setup || function () {
        };
        this.teardown = teardown || function () {
        };
        this.isWaiting = false;
        this.timeToWait = 1000;
    },
    wait: function (time, nextPart) {
        this.isWaiting = true;
        this.test = nextPart;
        this.timeToWait = time;
    },
    run: function () {
        try {
            try {
                if (!this.isWaiting) this.setup.bind(this)();
                this.isWaiting = false;
                this.test.bind(this)();
            } finally {
                if (!this.isWaiting) {
                    this.teardown.bind(this)();
                }
            }
        }
        catch (e) {
            this.error(e);
        }
    }
});
